The news of Stefani’s new role comes as Revlon also announced plans that it expects to cut around 350 positions worldwide and incur around $65m to $75m in total pre-tax restructuring and related charges as it integrates the Elizabeth Arden business that it recently acquired into its operations.

It will see an estimated pre-tax restructuring charge of around $30m for 2016 with $30m-$40 being paid out this year and the rest up until 2020.

The $870m buy was announced last summer and is designed to create a $3bn global beauty giant with strength in mass-market make-up, haircare, fragrances and high-end skincare, as well as kick-starting elusive growth for both businesses.

At the time the deal was announced it was expected to generate savings of around $140m in total for the combined company.

Revlon itself had been potentially on the block before the deal was announced as its controlling shareholder Ronald O Perelman was considering strategic alternatives. Analysts said the Arden buy would also help Revlon refinance its heavy debt load.